KR900004465Y1 - Electric power saving circuit for video camera - Google Patents

Electric power saving circuit for video camera Download PDF

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Publication number
KR900004465Y1
KR900004465Y1 KR2019870015951U KR870015951U KR900004465Y1 KR 900004465 Y1 KR900004465 Y1 KR 900004465Y1 KR 2019870015951 U KR2019870015951 U KR 2019870015951U KR 870015951 U KR870015951 U KR 870015951U KR 900004465 Y1 KR900004465 Y1 KR 900004465Y1
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gates
circuit
control signal
output
video camera
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KR2019870015951U
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Korean (ko)
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KR890007940U (en
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송근성
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삼성전자 주식회사
안시환
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/65—Control of camera operation in relation to power supply
    • H04N23/651—Control of camera operation in relation to power supply for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lens Barrels (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

내용 없음.No content.

Description

밧데리내장형 비디오 카메라의 절전회로Power Saving Circuit for Battery-Integrated Video Camera

제1도는 본 고안의 실시예 회로도.1 is an embodiment circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 비교부 2 : 구동부1: comparison unit 2: driving unit

MI : 마이콤 CM : 비교기MI: Micom CM: Comparator

NR1-NR3: 노어게이트 OR1-OR3: 오어게이트NR 1 -NR 3 : NORGATE OR 1 -OR 3 : ORGATE

Q1-Q3: 트랜지스터 R1-R9: 저항Q 1 -Q 3 : Transistors R 1 -R 9 : Resistance

LD1: 발광다이오드 AIC : 자동조리개회로LD 1 : Light Emitting Diode AIC: Auto Iris Circuit

AFC : 자동초점회로 EZC : 전동줌회로AFC: Auto Focus Circuit EZC: Electric Zoom Circuit

M1-M3: 모우터M 1 -M 3 : motor

본 고안의 비디오카메라 특히, 밧데리를 사용하는 소형 비디오 카메라에 있어서, 밧데리전압이 규정치이하로 감소될 경우, 밧데리 경보신호를 발함과 동시에 자동조리개 기능, 자동초점기능 및 전동줌(ZOOM)기능을 멈추게하여 전력소비를 줄임으로서 밧데리의 수명을 최대한 연장시키도록 한 밧데리 내장형 비디오카메라의 절전회로에 관한 것이다.In the video camera of the present invention, in particular, a small video camera using a battery, when the battery voltage decreases below a specified value, a battery alarm signal is issued and the auto iris function, the auto focus function, and the zoom function are stopped. The present invention relates to a power saving circuit of a video camera with a built-in battery, which extends the life of the battery as much as possible by reducing power consumption.

종래에는 비디오카메라의 밧데리전압이 규정치이하로 감소될 경우에 밧데리 경보신호만을 발하고, 모우터가 사용되어 전력소비가 많은 자동조리개 기능, 자동초점기능 및 전동줌기능등은 계속 사용하도록 되어있어 밧데리의 얼마남지 않은 전력마져 짧은시간에 소비하게 되는 폐단이 있었다.Conventionally, when the battery voltage of the video camera decreases below the specified value, only the battery alarm signal is issued, and the motor is used to continuously use the auto iris function, the auto focus function, and the electric zoom function, which consume a lot of power. There was a shortage of electricity consumed in a short time.

본 고안은 이와같은 폐단을 해결하기 위하여 비디오카메라의 밧데리전압이 규정치이하로 감소하면 전력소비가 많은 자동조리개기능, 자동초점기능 및 전동줌기능등은 작동하지 못하게 하고 이들 기능을 수동조작으로만 사용할 수 있도록 고안한 것으로서, 이하 첨부도면에 의해 본 고안의 구성 및 작용효과를 설명하면 다음과 같다.In order to solve this problem, the present invention, when the battery voltage of the video camera is reduced below the specified value, the auto iris function, the auto focus function, and the electric zoom function, which consume a lot of power, do not operate and use these functions only by manual operation. As designed to be, the following describes the configuration and effect of the present invention by the accompanying drawings.

통상의 마이콤(MI)에서 출력되는 자동조리개제어신호, 자동초점제어신호 및 전동줌제어신호가 각각 노어게이트(NR1-NR3)의 일측입력단자로 인가되게 연결하고, 이 마이콤(MI)에 출력되는 완전자동제어신호가 각 노어게이트(NR1-NR3)의 타측입력단자에 공통인가되게 연결하며, 기준전압(VCM)과 밧데리전압(VBT)이 입력되는 비교기(CM) 및 저항(R1-R9)으로된 비교부(1)의 출력이 오어게이트(OR1-OR3)의 일측입력단자에 공통인가되게 연결하고, 상기의 노어게이트(NR1-NR3)의 각 출력이 상기의 오어게이트(OR1-OR3)의 타측입력단자에 각각 인가되게 연결하며, 이 오어게이트(OR1-OR3)의 출력이 저항(R1-R9) 및 트랜지스터(Q1-Q3)로 된 구동부(2)에 각각 인가되게 연결하고, 이 구동부(2)의 각 출력이 통상의 모우터(M1-M3)구동용 자동조리개회로(AIC), 자동초점회로(AFC) 및 전동줌회로(EZC)에 각각 인가되게 연결하여 구성한 것이다.The auto iris control signal, the auto focus control signal, and the electric zoom control signal output from the conventional microcomputer MI are applied to one input terminal of the NOR gates NR 1 to NR 3 , respectively, and are connected to the microcomputer MI. The output fully automatic control signal is connected to the other input terminal of each NOR gate (NR 1- NR 3 ) in common, and the comparator (CM) and resistance to which the reference voltage (V CM ) and the battery voltage (V BT ) are input. The output of the comparator 1 composed of (R 1 -R 9 ) is connected in common to one input terminal of the OR gates OR 1 -OR 3 , and each of the NOR gates NR 1 -NR 3 described above. Outputs are connected to the other input terminals of the OR gates OR 1 -OR 3 , respectively, and the outputs of the OR gates OR 1 -OR 3 are resistors R 1 -R 9 and transistors Q 1. each is to be connected to a -Q 3) drive unit (2) to and Motor each output a normal of the driving unit (2) (M 1 -M 3 ) drive the auto iris circuit (AIC) for, chair It is configured to be connected respectively applied to the focus circuit (AFC) and the electric zoom circuit (EZC).

미설명 부호중 B+는 직류전원, AI,FA,AF,ZM은 각각 마이콤(MI)의 자동조리개 제어신호를 출력단자, 완전자동제어신호 출력단자, 자동초점제어신호출력단자 및 전동줌제어 신호출력단자이다.B + denotes DC power, AI, FA, AF and ZM denote the output terminal of MICOM, auto-control signal output terminal, fully automatic control signal output terminal, auto focus control signal output terminal and electric zoom control signal. Output terminal.

이와같이 구성되는 본 고안에 있어서, 비교전압(VCM)과 밧데리전압(VBT)이 비교부(1)에 입력되어 밧데리전압(VBT)이 저항(R2)(R3)으로 분압된 반전입력전압(V-)과 기준전압(VCM)이 비반전입력전압(V+)을 비교하여 밧데리전압(VBT)이 분압된 반전입력전압(V-)이 기준전압(VCM)이 비반전입력전압(V+)보다 크면 비교부(1)에서 '로우'레벨이 출력되어 오어게이트(OR1-OR3)의 일측입력에 공통인가됨에 따라 구동부(2)의 작동은 마이콤(MI)의 각 제어단자(AI)(AF)(ZM)(FA)서 출력되는 제어신호에 의해 결정된다. 즉, 자동조리개 제어단자(AI)의 출력이 '하이'레벨로 되면 노어게이트(NR1)의 출력이 '로우'레벨이 되어 오어게이트(OR1)에 인가되고 이 오어게이트(OR1)의 출력이 '로우'레벨이 되어 구동부(2)내의 트랜지스터(Q1)의 베어스에 인가됨에 따라 트랜지스터(Q1)가 도통하여 자동조리개회로(AIC)를 구동시켜 자동조리개용 모우터(M1)를 구동시킴으로서 자동조리개기능이 수행된다. 또한, 자동초점기능, 전동줌기능 및 완전자동기능도 전술한 바와 동일한 방법으로 작동된다.In the present invention configured as described above, the comparison voltage (V CM ) and the battery voltage (V BT ) are input to the comparator 1 so that the battery voltage (V BT ) is divided by the resistor (R 2 ) (R 3 ). input voltage (V -) and the reference voltage (V CM) is a non-inverting input voltage (V +) compared to the battery voltage (V BT) is the inverting input voltage (V -) dividing the reference voltage (V CM) the ratio If the input voltage is greater than the inverting input voltage (V + ), the 'low' level is output from the comparator 1 and is commonly applied to one side input of the OR gates OR 1 -OR 3 . Is determined by a control signal output from each control terminal AI (AF) (ZM) (FA). That is, when the automatic stop output is "high" level of the control terminal (AI), the output of NOR-gate (NR 1) is the 'low' level is applied to OR gate (OR 1) of this OR gate (OR 1) and outputting a 'low' is a level at which the transistor (Q 1) as applied to the Bears of the transistor (Q 1) in the driving part (2) conductive to drive the auto iris circuit (AIC) emitter Motor for auto iris (M 1) The auto iris function is performed by driving. In addition, the auto focus function, the electric zoom function and the fully automatic function are also operated in the same manner as described above.

한편, 밧데리전압(VBT) 분압된 반전입력전압(V-)이 기준전압(VCM)인 비반전입력전압(V+)보다 작으면 비교부(1)에서 '하이'레벨이 출력되어 밧데리경보표시용 발광다이오드(LD1)에 인가함과 동시에 오어게이트(OR1-OR3)의 일측입력에 공통인가되면 오어게이트(OR1-OR3)의 타측입력의 상태 즉, 마이콤(MI)의 각 제어단자(AI)(AF)(ZM)(FA)에서 출력되는 각 제어신호에 무관하게 오어게이트(OR1-OR3)의 출력이 '하이'레벨이 되어 구동부(2)내의 트랜지스터(Q1-Q3)가 '오프'의 베이스에 '하이'레벨이 각각 인가됨에 따라 트랜지스터(Q1-Q3)됨으로서 자동조리개 회로(AIC), 자동초점회로(AFC) 및 전동줌회로(EZC)가 구동하지 못하여 자동조리개기능, 자동초점기능 및 전동줌기능등이 작동하지 못하게 된다.On the other hand, when the inverted input voltage (V − ) divided by the battery voltage (V BT ) is smaller than the non-inverted input voltage (V + ), which is the reference voltage (V CM ), the high level is output from the comparator 1 and the battery is output. state of the other input of the OR gate (OR 1 -OR 3) When applied to the common input side and at the same time the alert is displayed for the light-emitting diodes (LD 1) OR gate (OR 1 -OR 3) That is, the microcomputer (MI) Irrespective of each control signal output from each control terminal AI (AF) (ZM) (FA), the outputs of the OR gates OR 1 -OR 3 become 'high' levels so that the transistors in the driving unit 2 ( Q 1 -Q 3 ) is a transistor (Q 1 -Q 3 ) as the 'high' level is applied to the base of the 'off', so that the auto-aperture circuit (AIC), the auto focus circuit (AFC) and the motor zoom circuit (EZC) ), The auto iris function, auto focus function and electric zoom function cannot be operated.

이와같이 본 고안은 비디오카메라의 밧데리전압이 규정치이하로 감소할 경우, 전력소비가 많은 자동조리개기능, 자동초점기능 및 전동줌기능등이 작동하지 못하게 함으로써 밧데리의 수명을 최대한 연장시킬 수 있으며 제품 기능의 다양화를 이룩한 유용한 고안이다.In this way, when the battery voltage of the video camera decreases below the specified value, the auto iris function, the auto focus function, and the electric zoom function, which consumes a lot of power, are prevented from operating, thereby extending the life of the battery as much as possible. It is a useful design with diversification.

Claims (1)

통상의 마이콤(MI)에서 출력되는 자동조리개제어신호, 자동초점제어신호 및 전동줌제어신호가 각각 노어게이트(NR1-NR3)의 일측입력단자로 인가되게 연결하고, 이 마이콤(MI)에 출력되는 완전자동제어신호가 각 노어게이트(NR1-NR3)의 타측입력단자에 공통인가되게 연결하며, 기준전압(VCM)과 밧데리전압(VBT)이 입력되는 비교기(CM) 및 저항(R1-R9)으로된 비교부(1)의 출력이 오어게이트(OR1-OR3)의 일측입력단자에 공통인가되게 연결하고, 상기의 노어게이트(NR1-NR3)의 각 출력이 상기의 오어게이트(OR1-OR3)의 타측입력단자에 각각 인가되게 연결하며, 이 오어게이트(OR1-OR3)의 출력이 저항(R1-R9) 및 트랜지스터(Q1-Q3)로 된 구동부(2)에 각각 인가되게 연결하고, 이 구동부(2)의 각 출력이 통상의 모우터(M1-M3) 구동용 자동조리개회로(AIC), 자동초점회로(AFC) 및 전동줌회로(EZC)에 각각 인가되게 연결하여 구성함을 특징으로 하는 밧데리 내장형 비디오카메라의 절전회로.The auto iris control signal, the auto focus control signal, and the electric zoom control signal output from the conventional microcomputer MI are applied to one input terminal of the NOR gates NR 1 to NR 3 , respectively, and are connected to the microcomputer MI. The output fully automatic control signal is connected to the other input terminal of each NOR gate (NR 1- NR 3 ) in common, and the comparator (CM) and resistance to which the reference voltage (V CM ) and the battery voltage (V BT ) are input. The output of the comparator 1 composed of (R 1 -R 9 ) is connected in common to one input terminal of the OR gates OR 1 -OR 3 , and each of the NOR gates NR 1 -NR 3 described above. Outputs are connected to the other input terminals of the OR gates OR 1 -OR 3 , respectively, and the outputs of the OR gates OR 1 -OR 3 are resistors R 1 -R 9 and transistors Q 1. each is to be connected to a -Q 3) drive unit (2) to and Motor each output a normal of the driving unit (2) (M 1 -M 3 ) drive the auto iris circuit (AIC) for, chair Focus circuit (AFC) and the electric zoom circuit (EZC) respectively applied to the battery to be integrated video camera in which power-saving circuit, characterized in that configuration to connect to.
KR2019870015951U 1987-09-18 1987-09-18 Electric power saving circuit for video camera KR900004465Y1 (en)

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KR2019870015951U KR900004465Y1 (en) 1987-09-18 1987-09-18 Electric power saving circuit for video camera

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Application Number Priority Date Filing Date Title
KR2019870015951U KR900004465Y1 (en) 1987-09-18 1987-09-18 Electric power saving circuit for video camera

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KR900004465Y1 true KR900004465Y1 (en) 1990-05-21

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